作者机构：
[范彬; 周力行; 刘家郡; 曹智平] College of Electrical and Information Engineering, Changsha University of Science and Technology, Changsha, 410114, China;[张艳萍] Wuwei Power Supply Company, Gansu Electric Power Company, Wuwei, 733000, China
作者机构：
[王林; 阮琦; 宋雅楠; 付超; 赵军; 袁雪琼] College of Electrical Engineering, Changsha University of Science and Technology, Changsha, 410114, China;[张春辉] Changsha Xinchang Electric Power Technology Co. Ltd., Changsha, 410009, China
作者：
Zeng, Xiangjun*;Zhang, Weiming;Xu, Shun;Gu, Yingke;Zhang, Bin
期刊：
Proceedings of the 5th IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies, DRPT 2015,2015年:1184-1189
会议名称：
2015 5th International Conference on Electric Utility Deregulation and Restructuring and Power Technologies (DRPT)
会议时间：
November 2015
会议地点：
Changsha, China
会议论文集名称：
2015 5th International Conference on Electric Utility Deregulation and Restructuring and Power Technologies (DRPT)
关键词：
Low-voltage Distribution System;Leakage Protector;Fault Pre-Detecting;Automatic Reclosing Introduction
摘要：
This The development of human's living condition and the corresponding technology application in low-voltage distribution system have currently caused lots of power consumption. Thus, it is important to find out the fault location and switch off the device before fault occurring. This paper analyzes the principle of leakage current &short-circuit current fault detection, applies fault pre-detecting theory to preclude the hidden fault, provides the measure of isolating force electricity from weak electricity, designs a novel household distribution protection device with fault pre-detecting. Its performance meets relevant low-voltage distribution system standards. Simulation and practical application show that the device has a bigger advantage of troubleshooting, correct malfunction for relays. Therefore the device is more smart and practical than traditional protection device and has more value for popularization.
期刊：
Proceedings of the 5th IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies, DRPT 2015,2015年:1220-1223
通讯作者：
Chen, Rui
作者机构：
[Weng, Hongjie; Chen, Rui] Guangdong Power Grid Corp, Elect Power Res Inst, Guangzhou, Guangdong, Peoples R China.;[Cai, Yancun; Wang, Wen; He, Leisisi] Changsha Univ Sci & Technol, Hunan Prov Key Lab Smart Grids Operat & Control, Changsha, Hunan, Peoples R China.
通讯机构：
[Chen, Rui] G;Guangdong Power Grid Corp, Elect Power Res Inst, Guangzhou, Guangdong, Peoples R China.
会议名称：
2015 5th International Conference on Electric Utility Deregulation and Restructuring and Power Technologies (DRPT)
会议时间：
November 2015
会议地点：
Changsha, China
会议主办单位：
[Chen, Rui;Weng, Hongjie] Guangdong Power Grid Corp, Elect Power Res Inst, Guangzhou, Guangdong, Peoples R China.^[He, Leisisi;Cai, Yancun;Wang, Wen] Changsha Univ Sci & Technol, Hunan Prov Key Lab Smart Grids Operat & Control, Changsha, Hunan, Peoples R China.
会议论文集名称：
2015 5th International Conference on Electric Utility Deregulation and Restructuring and Power Technologies (DRPT)
关键词：
neutral ineffectively grounded distribution systems;three-phase voltage unbalance;injecting current
摘要：
Three-phase voltage unbalance is frequently encountered in neutral ineffectively grounded distribution systems, which affects the normal operation and power quality of power system. This paper proposed a novel method to restrict the unbalance by means of injecting a current to the neutral point. The injecting current is used to compensate the grounding 1current and then force neutral voltage to zero and three-phase voltage to balance as well. An inverter is connected between the neutral point and the earth through a transformer to produce the injecting current. By controlling the inverter, the amplitude, phase and frequency of injecting current can be controlled flexibly. A 10kV distribution system model was built in MATLAB for analysis. The simulation results indicate that the proposed method can restrain the three-phase unbalance voltage efficiently and rapidly.
通讯机构：
[Wei, Sun] H;Hunan Univ, State Key Lab Adv Design & Mfg Vehicle Body, Changsha 410082, Hunan, Peoples R China.
关键词：
Cleaning;Closed loop control systems;Ducts;Radial basis function networks;Robots;Robust control;Adaptive robust control;Duct cleaning robots;Lyapunov stability theory;RBF Neural Network;uncertainties;Adaptive control systems
期刊：
Proceedings of the 5th IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies, DRPT 2015,2015年:2074-2078
摘要：
针对屯兰110 k V变电站发生的雷击打坏主变事故,并结合现场调查和实验室试验情况,对事故的原因进行了计算分析。认为母线避雷器的接地引下线太长、变电站的冲击接地电阻过大、雷电过电压未经过进线段保护进行有效限制,侵入的雷电波幅值过高是这起雷害事故的主要原因。提出了以下针对性的改造措施：对变电站的接地装置进行优化改造、规范站内避雷器接地引下线的长度及布设位置、在进线段杆塔上装设无间隙的氧化锌避雷器、对装设有线路避雷器杆塔的接地装置和接地电阻进行检测。通过以上改造,消除了变电站防雷保护的隐患,大大提高了矿区电网的供电可靠性。
摘要：
Demand response (DR) and wind power are beneficial to low-carbon electricity to deal with energy and environmental problems. However, the uncertain wind power generation (WG) which has anti-peaking characteristic would be hard to exert its ability in carbon reduction. This paper introduces DR into traditional unit commitment (UC) strategy and proposes a multi-objective day-ahead optimal scheduling model for wind farm integrated power systems, since incentive-based DR can accommodate excess wind power and can be used as a source of system spinning reserve to alleviate generation side reserve pressure during both peak and valley load periods. Firstly, net load curve is obtained by forecasting load and wind power output. Then, considering the behavior of DR, a day-ahead optimal dispatching scheme is proposed with objectives of minimum generating cost and carbon emission. Non-dominated sorting genetic algorithm-II (NSGA-II) and satisfaction-maximizing method are adopted to solve the multi-objective model with Pareto fronts and eclectic decision obtained. Finally, a case study is carried out to demonstrate that the approach can achieve economic and environmental aims and DR can help to accommodate the wind power.
作者：
Deng, Feng*;Li, Xinran;Zeng, Xiangjun;Zhao, Donghong;Yang, Lan
期刊：
Proceedings of the 5th IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies, DRPT 2015,2015年:1147-1151
通讯作者：
Deng, Feng
作者机构：
[Li, Xinran; Deng, Feng] Hunan Univ, Coll Elect & Informat Engn, Changsha, Hunan, Peoples R China.;[Deng, Feng; Zeng, Xiangjun; Yang, Lan] Changsha Univ Sci & Technol, Coll Elect & Informat Engn, Changsha, Hunan, Peoples R China.;[Zhao, Donghong] China Wuzhou Engn Grp Co Ltd, Beijing, Peoples R China.
摘要：
Nowadays, the reliability and accuracy of synchronous clock in the power system protection and location is hardly realized. High accuracy synchronous clock based on GPS and BEIDOU navigation satellite system was presented in the paper. Firstly, the accumulating error produced by crystal oscillator can be eliminated by reference of GPS 1PPS based on digital phase lock principle, and then GPS and BEIDOU mutual backup scheme can guarantee the reliability of synchronous clock when GPS worked under abnormal status or random error was too large. And then on the basis of high accuracy synchronous clock technology, a network-based traveling wave fault location system was proposed. The presented system operated in Hunan Changsha and Zhuzhou power system, and the results showed that it had great reliability, stability and accuracy.
通讯机构：
[Peng, Hui] C;Cent S Univ, Sch Informat Sci & Engn, Changsha 410083, Hunan, Peoples R China.
关键词：
Algorithms;Linearization;Model predictive control;Nonlinear programming;Radial basis function networks;Real time control;Social networking (online);Tanks (containers);Three term control systems;Water tanks;ARX model;Gaussian radial basis functions;Liquid level control;Model based predictive control;Non-linear optimization;Nonlinear characteristics;Structural characteristics;Tank system;Predictive control systems
期刊：
Proceedings of the 5th IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies, DRPT 2015,2015年:1942-1947
